Metal roof cleaning
Metal roofs are washed to remove grime and staining with solutions safe for metal finishes.
Exterior Services
Roof Cleaning Paramus, NJ
A Paramus roofer can remove dark roof stains, lichen and debris, while protecting plants, siding and gutters below. Call (551) 383-2304 to reach a local roofer.
Those black streaks running down a shingle roof are almost always algae, not dirt or mold from inside the house. The algae builds a dark protective coating that absorbs sunlight, which is why the streaks look black and grow down the slope where water runs. Algae on its own is mainly cosmetic, though it often travels with lichen and moss, which hold water and work under the shingle edges.
The method decides whether cleaning helps the roof or shortens its life. Pressure washing blasts the protective granules off asphalt shingles, can force water under the laps and can crack tile or slate, so roofers avoid it on most roofs. A soft wash applies a cleaning solution at low pressure, gives it time to work and rinses gently, which kills the growth at the root without scouring the surface.
Some quick observations make the first conversation easier. Write down which parts of the roof are stained and whether you see green moss, gray lichen or just dark streaks. It also helps to know what is growing beneath the roof edges, since plants are protected during the wash.
If the problem goes deeper than it first looked, a Paramus roofer may also recommend roof moss removal or gutter cleaning.
Looking for Paramus roof cleaning? Call (551) 383-2304 and describe the problem to a roofer who works in Paramus.
Call nowThe process
How roof cleaning works
Here is how a roofer typically cleans a roof.
Start with a look
The roofer checks the roof material, the type of growth and the condition of the shingles, flashing and vents before cleaning. Problems hidden under the grime often show up here.
Prepare the site
Landscaping below the eaves is soaked with fresh water so it does not absorb the cleaning solution. Siding and windows are rinsed to keep the solution from drying on them.
Apply the soft wash
A cleaning solution matched to the roof material is applied at low pressure, from the bottom of the slope up. Shingles, tile and metal each get a solution suited to them.
Finish the wash
The roof is rinsed at low pressure where the method calls for it, and debris is cleared from valleys and gutters. Heavy lichen can take several rains to wash away fully.
Clean up below
Once the roof is done, landscaping and surfaces are rinsed and the gutters are checked. The roofer notes any shingles or flashing that need repair.
What is included
What roof cleaning covers
Lichen treatment
Lichen patches are sprayed and left to loosen then wash away over time.
Valley clearing
Built-up debris is swept off the roof so water drains freely.
Algae streak removal
Black algae streaks are removed with a low-pressure soft wash so the roof color comes back.
Zinc strips
Zinc or copper strips can be installed near the ridge after the roof is cleaned.
Related service
Roof Soft Wash Paramus, NJ
Soft washing is the low-pressure method used on most roofs, relying on a cleaning solution rather than force. The solution, often a diluted sodium hypochlorite mix with a surfactant to help it cling, kills algae, lichen and moss spores where they grow. The gentler approach protects granules, laps and sealant strips.
Most Paramus homeowners with streaked shingles are well served by a soft wash. The key is protecting what sits below the roof, since the solution can harm plants if it is not diluted or rinsed. Expect algae to clear first and crusty lichen to fade over the following weeks.
Related service
Roof Cleaning Service Paramus, NJ
Hiring a roof cleaning service means the work is done with proper safety gear and the right solution for your roof. Never climb onto a wet roof to clean it; leave the roof work to someone with fall protection. A cleaning by a roofer doubles as a close look at the roof surface.
Many Paramus roof cleanings end with clearing the gutters and downspouts. After cleaning, metal strips near the peak can keep algae and moss from coming back as quickly. Trimming branches that shade or drop debris on the roof also helps.
Local help
Roof Cleaning Near Me
Roof cleaning calls in Paramus come from homes with shaded roofs, older shingles and newer roofs that have started to streak alike. From Paramus out to neighboring towns such as Oradell, River Edge, Fair Lawn and New Milford, older roofs often need lichen and moss treatment while newer ones usually just need streaks removed, and catching growth early makes the cleaning easier on the roof.
Searching for roof cleaning near me from Paramus or Oradell, River Edge, Fair Lawn and New Milford? Call (551) 383-2304 to talk to a roofer who works in your part of town.
Roofs in this climate
Winters here are long and cold, with snow on the roof for weeks at a time and plenty of nights below freezing. When warm attic air melts the snow, the meltwater runs down and freezes again at the eaves, building ice dams that push water up under the shingles. Strong coastal storms push rain into every weak spot at the flashing and valleys. Most homeowners in Paramus, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why act early
Drier ceilings
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Local knowledge
Local roofers see the same roofs and storm damage across Paramus and nearby towns.
Clear next steps
Ask the roofer about the cause, the options and the estimate before work starts.
Roof Cleaning questions
When should I clean my roof again?
Many roofs go several years between cleanings. Shaded roofs and roofs near trees grow algae and lichen faster. Zinc or copper strips and trimmed branches can stretch the time between cleanings.
What causes black streaks on my roof?
Black streaks on a roof are usually algae, often a type called Gloeocapsa magma. It thrives in shade and moisture and spreads down the slope with rainwater. Shade, trees and humidity all make it worse.
How are plants protected during roof cleaning?
Plants are protected by soaking them with fresh water ahead of the cleaning and rinsing them again when it is done. Delicate plants can be covered, and downspouts can be directed away from beds. Point out any plants you want extra care around.
Can I pressure wash my roof?
A pressure washer does more harm than good on shingles. It wears down the surface that protects shingles from the sun. A low-pressure soft wash cleans the roof without that damage.
Does roof cleaning make my roof last longer?
Cleaning helps most when lichen or moss is present, since they damage shingles over time. It doubles as a chance to check the roof surface. The method makes all the difference.
More questions? Call (551) 383-2304
Other services that may help
Roof Moss Removal
Removing moss from shingle, shake and tile roofs without tearing up the roofing, so water drains the way the roof was built for.
Learn moreGutter Cleaning
Gutter cleaning that clears leaves, needles and sludge by hand, then flushes the gutters and downspouts, before overflow rots the fascia.
Learn moreRoof Maintenance
Seasonal roof maintenance for shingles, flashing, vents, gutters and attic airflow, so the roof reaches the end of its expected life.
Learn moreCedar Shake Roof Repair
Replacing split, cupped or missing shakes, clearing moss and fixing valleys and ridge caps, matched to what a close look at the roof actually finds.
Learn more
Looking for something else?
See all roofing servicesNeed roof cleaning in Paramus, NJ?
Call (551) 383-2304 for a local roofer in Paramus and nearby towns.